OpenAI Pricing Calculator
Updated May 2026Estimate costs for GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5.4 nano, GPT-5.2, GPT-5, GPT-4.1, o3, o4-mini, and other OpenAI models based on your token usage.
OpenAI pricing: OpenAI pricing in 2026: ChatGPT Free, Go $8/mo, Plus $20/mo, Pro $100 & $200/mo, Business $20/seat, and the GPT-5.x API from $0.20/1M tokens. Full plan breakdown. Use the free calculator below to enter your usage and get an instant all-in monthly estimate — including overages — and see which plan is cheapest for your needs.
How OpenAI prices: Freemium subscription (ChatGPT Free/Go/Plus/Pro/Business/Enterprise) + pure-usage API (pay-per-token).
Best fit at your usage: GPT-4.1 nano
$0.90/mo— saves $59.10/mo vs your selection
Token Usage
Average number of tokens you send per API call
Average number of tokens the model generates per call
Request Volume
How many API calls do you make daily?
Compare Plans at Your Usage
Monthly Estimate
GPT-5.5
$60.00
per month
Cost Breakdown
Daily
$2.00
Annual
$720.00
Why GPT-4.1 nano — $0.90/mo
- GPT-4.1 nano at $0.90/mo.
- Output tokens is 67% of your bill — the lever that matters most.
Budget range
Plan for usage swings, not just today's estimate.
Conservative
$52.50
500 tokens/mo
Expected
$60.00
1K tokens/mo
Aggressive
$75.00
2K tokens/mo
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Get StartedAbout this OpenAI calculator
This calculator estimates your OpenAI cost from publicly available pricing. Actual costs may vary with your specific agreement, volume discounts, and usage patterns — always verify on the provider's official pricing page for the most current rates.
OpenAI pricing — frequently asked questions
How much does ChatGPT cost per month? ▼
ChatGPT consumer tiers are: Free ($0), Go ($8/month), Plus ($20/month), and Pro (two tiers, $100/month and $200/month). For teams, ChatGPT Business is $20/seat/month billed annually (or $25/seat billed monthly) with a 2-seat minimum. Enterprise pricing is custom and requires contacting sales.
What is the difference between ChatGPT Plus and Pro? ▼
ChatGPT Plus ($20/mo) gives expanded model access, Advanced Voice Mode, image generation, and larger usage limits than the free tier. ChatGPT Pro ($100/mo or $200/mo) layers on much higher usage limits and Pro-mode reasoning — a significantly higher-compute configuration — plus priority access to new models, with the $200 tier offering the highest limits.
How does OpenAI API pricing work? ▼
OpenAI API pricing is pure pay-per-token: you pay for input tokens (the prompt + context) and output tokens (the generated response) separately, per model. On the current GPT-5.x line, prices range from $0.20/1M input (GPT-5.4 nano) to $30/1M output (GPT-5.5). Batch API requests cost 50% less; cached input tokens are billed at a reduced cached-input rate.
Which OpenAI model is cheapest? ▼
GPT-5.4 nano is OpenAI's cheapest current GPT-5.x model at $0.20/1M input and $1.25/1M output. GPT-5.4 mini ($0.75/$4.50) is the next step up and is generally preferred when a small model needs stronger coding or tool-use ability.
Is this OpenAI pricing calculator free and accurate? ▼
Yes — it's completely free with no signup. It uses the latest publicly available OpenAI pricing (verified May 2026). Actual costs may vary with volume discounts or enterprise terms — always confirm on OpenAI's official pricing page.